linux-kernel - leave_mm() and lazy TLB mode

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Message-ID: <a2ebde260610281023x65c0bcd2ga34f7e50d0427259@mail.gmail.com>
Date:	Sun, 29 Oct 2006 01:23:00 +0800
From:	"Dong Feng" <middle.fengdong@...il.com>
To:	linux-kernel@...r.kernel.org
Subject: leave_mm() and lazy TLB mode

There are several places where some comments say leave_mm() disables
TLB flush on CPUs in lazy TLB mode.

My question may be silly, ...

leave_mm() change the value of CR3 register. In my understanding, that
causes TLB flush. Does this contradict with the definition of lazy TLB
mode?
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